Could we actually have a White Christmas across the area? It’s certainly a possibility.
Clouds will thicken up tonight as a weak storm system moves toward the region. That system will spread some light snow across the area Friday morning. It won’t be a big deal, with most places receiving a coating to an inch or two of snow. If you do have to work Friday morning, the commute could be a little slippery. We’ll have some clearing in the afternoon, but temperatures will stay chilly, so much of the snow will remain on the ground. The “official” definition of a White Christmas is 1″ or more of snow on the ground at 7am. Will that happen? It could in some spots, but even if there’s not 1″, the grass should still be white for many of us.
Another system quickly approaches for Christmas Day into Sunday morning. This one looks a bit milder, with some rain likely during the afternoon, possibly starting as some freezing rain or sleet from the Merrimack Valley into southern New Hampshire. The rain won’t be that heavy, but as the system passes by Saturday night, colder air will fill in behind it, with a chance to light snow possible, again, mainly in southern New Hampshire and possibly the Merrimack Valley. Some minor accumulations are possible, but again, nothing major is likely. We’ll clear out again for Sunday afternoon into Monday as high pressure builds back in.
Thursday night: Mostly cloudy, light snow develops before daybreak. Low 14-21.
Christmas Eve: Light snow ends early, some afternoon sunny breaks. Snow accumulation a coating to perhaps 2 inches in spots. High 30-37.
Friday night: Mostly cloudy. Low 20-27.
Christmas Day: Cloudy with showers developing, possibly starting as some freezing drizzle or sleet from the Merrimack Valley into southern New Hampshire. High 36-43.
Saturday night: Showers may change back to wet snow, mainly across southern New Hampshire and the Merrimack Valley. Low 27-34.
Sunday: Rain or snow showers end early, some sunny breaks in the afternoon. High 37-44.
Sunday night: Becoming partly cloudy. Low 20-27.
Monday: Intervals of clouds and sun. High 33-40.